1.Peter has just arrived,but he talks as if he __a___ everything here.
问题描述：
1.Peter has just arrived,but he talks as if he __a___ everything here.
A.will know B.has known C.knew D.know
答
C
虚拟语气,彼特刚刚到（这里）,但是他说话的感觉像对这里了如指掌一样.
现在,事实上他不不是非常了解这里,所以只是假设而已.
与现在事实相反的假设,动词用一般过去时.所以选C